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enginex-ascend-910-vllm/csrc/attention/common/op_kernel/memcopy/parser.h
Sun Ruoxi 7f8a1b1f7a init v0.23.0
Signed-off-by: Sun Ruoxi <sunruoxi@4paradigm.com>
2026-08-27 15:11:51 +08:00

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/**
 * Copyright (c) 2025 Huawei Technologies Co., Ltd.
 * This program is free software, you can redistribute it and/or modify it under the terms and conditions of
 * CANN Open Software License Agreement Version 2.0 (the "License").
 * Please refer to the License for details. You may not use this file except in compliance with the License.
 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED,
 * INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR A PARTICULAR PURPOSE.
 * See LICENSE in the root of the software repository for the full text of the License.
 */
/*!
* \file parser.h
* \brief
*/
#ifndef PARSER_H
#define PARSER_H
#if ASC_DEVKIT_MAJOR >= 9
#include "kernel_vec_intf.h"
#include "kernel_cube_intf.h"
#else
#include "kernel_operator.h"
#endif
using AscendC::GlobalTensor;
// ----------------------------------------------ActualSeqLensParser--------------------------------
enum class ActualSeqLensMode
{
BY_BATCH = 0,
ACCUM = 1,
};
template <ActualSeqLensMode MODE, typename ACTLEN_T = uint64_t>
class ActualSeqLensParser {
};
template <typename ACTLEN_T>
class ActualSeqLensParser<ActualSeqLensMode::ACCUM, ACTLEN_T> {
public:
__aicore__ inline ActualSeqLensParser() = default;
__aicore__ inline void Init(GlobalTensor<ACTLEN_T> actualSeqLengthsGm, uint32_t actualLenDims,
uint64_t defaultVal = 0)
{
this->actualSeqLengthsGm = actualSeqLengthsGm;
this->actualLenDims = actualLenDims;
}
__aicore__ inline uint64_t GetTBase(uint32_t bIdx) const
{
if (bIdx == 0) {
return 0;
}
return actualSeqLengthsGm.GetValue(bIdx - 1);
}
__aicore__ inline uint64_t GetMxVscaleTBase(uint32_t bIdx) const
{
if (bIdx == 0) {
return 0;
}
uint64_t vScaleTBaseOffset = 0;
for (uint32_t idx = 0; idx < bIdx; idx++) {
vScaleTBaseOffset += ((GetActualSeqLength(idx) + 63) >> 6);
}
return vScaleTBaseOffset;
}
__aicore__ inline uint64_t GetActualSeqLength(uint32_t bIdx) const
{
if (bIdx == 0) {
return actualSeqLengthsGm.GetValue(0);
}
return (actualSeqLengthsGm.GetValue(bIdx) - actualSeqLengthsGm.GetValue(bIdx - 1));
}
__aicore__ inline uint64_t GetTSize() const
{
return actualSeqLengthsGm.GetValue(actualLenDims - 1);
}
private:
GlobalTensor<ACTLEN_T> actualSeqLengthsGm;
uint32_t actualLenDims;
};
template <typename ACTLEN_T>
class ActualSeqLensParser<ActualSeqLensMode::BY_BATCH, ACTLEN_T> {
public:
__aicore__ inline ActualSeqLensParser() = default;
__aicore__ inline void Init(GlobalTensor<ACTLEN_T> actualSeqLengthsGm, uint32_t actualLenDims, uint64_t defaultVal)
{
this->actualSeqLengthsGm = actualSeqLengthsGm;
this->actualLenDims = actualLenDims;
this->defaultVal = defaultVal;
}
__aicore__ inline uint64_t GetActualSeqLength(uint32_t bIdx) const
{
if (actualLenDims == 0) {
return defaultVal;
}
if (actualLenDims == 1) {
return actualSeqLengthsGm.GetValue(0);
}
return actualSeqLengthsGm.GetValue(bIdx);
}
__aicore__ inline uint32_t GetActualLenDims() const
{
return actualLenDims;
}
private:
GlobalTensor<ACTLEN_T> actualSeqLengthsGm;
uint32_t actualLenDims = 0;
uint64_t defaultVal = 0;
};
// ----------------------------------------------BlockTableParser--------------------------------
class BlockTableParser {
public:
__aicore__ inline BlockTableParser() = default;
__aicore__ inline void Init(GlobalTensor<int32_t> blockTableGm, uint32_t maxblockNumPerBatch)
{
this->blockTableGm = blockTableGm;
this->maxblockNumPerBatch = maxblockNumPerBatch;
}
__aicore__ inline int32_t GetBlockIdx(uint32_t bIdx, uint32_t blockIdxInBatch) const
{
return blockTableGm.GetValue(bIdx * maxblockNumPerBatch + blockIdxInBatch);
}
private:
GlobalTensor<int32_t> blockTableGm;
uint32_t maxblockNumPerBatch;
};
#endif